Measuring Amp Characteristics


This is a short description to characterize an amp to ensure proper performance over the operating range.  read more »

Dummy Load for Amp Testing


I needed a reliable dummy load for testing amps that I design and repair. Over the years I've been collecting the parts I thought I would need. Finally it all came together along with the time needed to assemble it. I wanteded mono and stereo modes and at least 50 Watts of power dissipation. Finally, I wanted it to be accurate.  read more »

Lab Setup Circa 2007


Pictures of my Lab Bench and Equipment, sort of a mess, but I was working on a project. I'm setup for audio vacuum tube amplifier work and antique radio repair. I have also put together a GPIB system to automate measurement of plate characteristics.  read more »

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